Anti-family with sequence similarity 19 (chemokine (C-C motif)-like), member A3 antibodies are used in antigen-specific immunodetection in biological samples. The target family with sequence similarity 19 (chemokine (C-C motif)-like), member A3 is a known alias name of the protein TAFA chemokine like family member 3, encoded by the TAFA3 gene in humans. This 133-amino acid residue protein is reported to play a role in the regulation of microglia polarization. The protein is secreted and features post-translational modifications. In terms of tissue expression, it is reported to have brain-specific expression.